[dev] [ccrond] the C cron daemon

From: Rodrigo Martins <rm_AT_firemail.cc>
Date: Tue, 17 May 2022 20:25:21 +0000

One day I was reading the source of scron and all the parsing made me unhappy, so I set out to write my own cron daemon that hopefully sucks less. This is what I came up with.

ccrond is a daemon that runs commands periodically. The crontab is defined in the C language, meaning there is no file parsing and allowing for minimal memory usage and very simple code.

Here's an example crontab file:

        DO downloadNews EVERY 30 MINUTES
        DO syncMirror EVERY 10 HOURS
        DO cleanCache EVERY 6 MINUTES
        DO backupSysConfig EVERY 2 DAYS AND 20 MINUTES
        DO backupMail EVERY 5 DAYS AND 7 HOURS
        DO backupMedia EVERY 6 WEEKS

Those verbs are actually C functions, but calling system() in them is a fine approach.

I have written about it in

And I have published the source code at

I've also made the first patch to get us started. Feel free to tell me what you think, list it in https://suckless.org/rocks/ and send patches.


Received on Tue May 17 2022 - 22:25:21 CEST

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